Equity Compensation: 90-Day Exit Rules and Tax Timing Shape Wealth

Equity compensation decisions made in isolation trigger tax bills and concentration risk that compound quietly, yet most employees manage them one vesting event at a time — a 90-day post-departure window can force rushed decisions.

"Equity compensation is not a standalone benefit; it's a meaningful part of the overall financial picture," said Elizabeth Schleifer, a certified financial planner at Armstrong, Fleming & Moore.

The stakes are measurable. When more than 80 percent of a household's net worth sits in one company's stock, a single bad year can erase 60 to 80 percent of accumulated wealth, according to Anatoly Iofe, founder and CEO of IceBridge Financial Group. Schleifer notes that the timing of exercises, sales, and vesting events directly determines how much value survives taxes — deferring taxable events in high-income years or accelerating them in low-income years can shift the after-tax outcome by meaningful margins.

The cost of reactive management extends beyond tax leakage. Vested stock options at many companies must be exercised within as few as 90 days of departure, whether the exit is retirement, resignation, or termination. Missing that window forfeits the value entirely. A coordinated plan — one that aligns exercise timing with income brackets, retirement dates, and portfolio diversification targets — turns equity compensation from a source of avoidable risk into a tool for long-term wealth building.

Concentration Risk: When Paycheck and Portfolio Are the Same Company

The most overlooked aspect of equity compensation is concentration risk. Your paycheck already depends on your employer. When a large portion of your investments also depends on that same company's stock, your financial well-being becomes tied to the success of one company, one industry, and one market cycle.

Iofe describes the psychological dimension: the asset is not just a line on a balance sheet — it is proof that the risk, the years, and the sacrifice were worth it. Selling a piece of it feels like admitting the story is over. He has watched clients delay diversification for years because the timing was never quite right, only to see a company built over 20 years lose more than half its value in 18 months when the industry shifted.

The math is unforgiving. When over 80 percent of net worth sits in one asset, you are not diversified — you are leveraged with time and circumstance. One bad year in that asset does not cost 10 or 20 percent; it costs 60, 70, or 80 percent of everything built. And unlike a bad investment in a diversified portfolio, there is no other position to offset it. Iofe once watched a founder sign a $4 billion agreement to sell his company, then break it, pay close to a billion in penalties for walking away, and watch the remaining asset lose most of its value in the years that followed.

Tax Timing and the 90-Day Exit Clock

Equity compensation decisions are also tax decisions. The timing of exercises, sales, and vesting events can impact how much of the value you ultimately keep after taxes are paid. In high-income years, it might make sense to defer certain taxable events when flexibility exists. In lower-income years, the opposite could be true — accelerating income can be advantageous.

For example, someone planning to retire at year-end might benefit from waiting to exercise stock options until the following year, when earned income is no longer part of the tax equation and lower tax brackets could apply. Market conditions also matter. If the goal is diversification, selling shares or exercising options during a market pullback can mean selling and re-investing at lower prices — a lower tax bill while allowing the assets to recover in a more diversified portfolio.

Post-departure rules add urgency. Many equity-compensation plans require vested stock options to be exercised within as few as 90 days after leaving the company, regardless of whether departure is due to retirement, resignation, disability, or death. These timelines can be short, so it's important that both you and your family understand what action might be required. If you're retiring, the post-retirement exercise window could be negotiable. If you're switching jobs, you have some control over your last day — for instance, if your next round of vesting is only a couple of weeks away, you can negotiate a start date with your new company that allows you to vest before leaving.

The Bottom Line

Equity compensation can be an important driver of long-term wealth, but it needs to be managed intentionally. When decisions aren't made in the context of your full financial picture, opportunities can quietly become avoidable risks. The clients who protect the most of what they have built are the ones who start the conversation before they need to — not because the timing is perfect, but because waiting for perfect timing is itself a decision, and usually the most expensive one they make.

This article is for informational purposes only and does not constitute investment, tax, or legal advice; readers should verify current rules and rates against the latest official announcements.